Joint for receptacles.



T. E. CAMP.

JOINT FOR REGEPTAGLES.

APPLICATION FILED HBA, 1911.

LGLQSGSL Patented Oct-22, 1912.

To allwliom 'it may comzern';V

citizen of the United States, and resident of' e UNITED sTATEs PATENT OFFICE.

' y momias E. om, or MILWAUKEE, WISCONSIN. I

JOINT ron mienrrncms.

Specification of Letters Patent.

Application 'led February 9`, 1911. Serial Nm 607,638. .l

Be it known that I, THOMAS E. CAMP, a

Milwaukee, in the `county of Milwaukee and State of Wisconsin, have invented'certain new and useful Improvements. in Joints for Rece tacles; andv I do hereby declare that the ollowing is a full, clear, and exact description thereof.

The object of my invention is to provlde a simplel and economical lhermetically sealed joint for trunks or other receptacles, the female member of the joint being non-flexible and adapted to receive the tongue of a male member, this invention being especially designed to simplify and reduce the cost of manufacturing joints of the character shown and described in an application for patent for improvements in tongue and groove joints led byme February 26, 1910, Serial No. 546,137, upon which application a patent was granted March 14, 1911, No. 986,439.

The construction shown in the above re ferred to patent necessitated routing out of one of the wood `body members and forming the opposite member with a tongue whereby a tongue and groove joint was effected.

This construction under ordinary conditions" is expensive and renders the parts weak at the joints Where they are subjected to strain under Ordinary conditions.

With my present improved form of joint the Wood members are left intact while the tongue and groove connections form cap members or reinforcers for the wood while at the Sametime the female member is made in two parts so as to simplify the manufacture and cost of the joint over the construction shown in said patent.

With the above object in view my invention consists in certain peculiarities of construction and combination of parts as hereinafter particularly set forth with reference to the accompany-ing drawings and subsequently claimed.

In the drawings Figure 1 vrepresents a sectional elevation of a joint embodying the preferred form of my invention, the elevation being in perspective, and Fig. 2, a similar view of a modified form of my invention.

Referring by characters to the drawings 1 indicates the wood 'body portion of a trunk or other receptacle, to the inner and outer walls of which are secured non-flexible metallic binders 2. Each binder is provided with an extension 3 that projects above the top edge of tlie woodbody portion, from which extension the binder is bent inwardly at a'right angle to form an abutting edge 4, the binder terminating with a rebent oblique wall 5, the lower edge of which abutsV the adjacent upper edge of the body and engages the inner wall of theextension 3.

Patentedoet. 22,1912.

Thus the upper portion of each binder forms a non-iexible hollow bead, which beads are oppositely disposed, the oblique lwalls thereofjn conjunction with the wood body forming an approximately inverted if-'shaped groove in cross-section, having a restricted throat. Loosely fitted into the V-shaped groove is a circular cushion-strip 6, which strip is of lesser diameter in crosssection than the groove area, the upper edge yof the same being below the plane of the throatportion of said groove as` shown. This-mechanism forms the female member of the joint, the male member comprising a wood body portion la, to the edge of which' is secured a metallic binder 7, having a tongue 8. which tongue is adapted to enter the restricted throat portion of the groove and impinge against the cushion, whereby the normal coniigurationof the cushion is changed due to the compression by the tongue, itV being particulary understood that said cushion is not compressed, but changes its shape within the groove due to the fact that the groove is of greater' cross-sectional area than the latter.

The particular advantage of the construction shown is due to the fact that the two binders of the female member which form the groove may be readily folded by a suitable machine prior to their attachment to the receptacle, the cushion being inserted therebetween before said binders are secured, the securing means being preferably in the form of rivets 10 which pass through the lower edge of both binders and the body portion of the receptacle.

The modification shown in Fig. 2 is of the 5a and bottom flange 12 and thereafter a second straight binder 13 is tted to the adjacent wall of the receptacle body to complete the groove, the binders upon the opposite faces of the body portion beiner thereafter secured by rivets as in the first instance. This construction places the restricted throat portion of the groove to one side and the tongue 8a of the female member is similarly located, whereby alinement of the members is obtained.

From the foregoing description it will be seen that by the very simple construction shown wherein the binder members are duplicates, Iam enabled to manufacture this hermetically sealed joint at a comparatively slight cost, while, at the same time rigidity,

.strength and wear 4is insured, particular attention being called to the fact that I utilize a cushion of less area' than the seat of the groove, whereby the life is increased, which life, under ordinary conditions wherein compression and contraction is had to obtain a seal, the said cushion will quickly deteriorate.

I claim: 1. A joint for detachable members `comprising a wood body portion having a nontlexible metallic binder secured to one wall thereof, the binder being extended above the wood body and bent at approximately a right angle thereto from which point it is rebent to form a downwardly extended oblique wall, a second binder Secured to the other wall of the wood body and extending above the same to form a groove in conjunctionwith the oblique wall of the first named binder and top edge of said body portion the throat of the groove being of less area than its base, a cushion-strip fitted into the roove of less cross-sect1onal area than the atter, a second .detachable memberI comprising a wood body, and a binder secured thereto having a tongue adapted to enter the groove of the first named detachable member.

2. A joint for detachable members comprising a wood body portion having a pair of non-lexible metallic binders secured to its opposite walls, the binder being provided with extensions above the wood body, which extensions are bent at approximately right angles and thereafter rebent to form downwardly extending oppositely disposed oblique walls, whereby a groove is formed in conjunction with the top edge of the wood body but Wholly above the same, the mouth of the groove being of less width in crosssection than the base thereof, a cushionstrip itted into the base of the groove of less cross-sectional area than, the latter, a second detachable member comprising a Wood body, a binder secured thereto having a ton ue projecting wholly above said body mem er adapted to enter the groove and enga-ge the cushion.

In testimony that I claim'the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee .and State of Wisconsin,in the presence of two witnesses.

THOMAS E. CAMP.

Witnesses:

MAY DowNEY, GEo. W. YOUNG. 

